Grain-door.



E. BROWN & L. E. LARSON.

GRAIN DOOR.

APPLlCATlON FILED APR. 12, 1915 4 1,185,471. Patented May30,1916.

2 -SHEETS-SHEETJ Suva Mom E BROWN LELARsQN I. r

ELMER BROWN AND LOE E. LARSON, 0F BISMARCK, NORTH DAKOTA; SAID BROWN ASSIGNOR OF ONE-FORTI'ETH OF THE WHOLE RIGHT TO GEORGE 3P. LITTLE AND ONE-FORTIETH OF WHOLE RIGHT TO L. A. SCHIPFER, BOTH OF BISMARCK,

NORTH DAKOTA.

' GRAIN-noon.

Specification of Letters Patent.

Patented May 30, 1916.

Application filed April '12, 1915. Serial id. 20,842.

To all whom it may concern:

Be it known'that we, ELMER BROWN and Lon E. LARSON, citizens of the United States,

residing at Bismarck, in the county of Burleigh and State of North Dakota, have inacter especially designed and adapted for use in connection with cars; and it is an ob ject of the invention to provide a novel and improved door of this general character comprising a plurality ofindependently movable sections which may be readily as sembled in operative position and which, when not in use, may be maintained in positions adjacent the door opening whereby said sections are readily accessible when the occasion so requires.

The invention consists in the details of construction and in the combination and arrangement of the several parts of our 1mproved grain door whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be carefully defined in the appended clalms.

In order that our invention may be the better understood, we will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view, partly in section and partly in elevation, illustrating a gram door constructed in accordance with an embodiment of our invention; Fig. 2 is a sectional View taken substantially on the line 22 of Fig. 1; Fig. 3 is a view, partly in elevation and partly in section, of our improved grain door as herein embodied, certain features of the invention being shown in further detail;

' Fig. 4 is a sectional View taken substantially ings, C denotes a side of a carbody having to that shown in produced therein a conventional doorway D, and said car side has secured to the inner face thereof along the vertical edges of the opening 2 the jambs 3 provided with the elongated slots 4 extending from the floor F of the car to a point in close proximity to the top thereof. As the specific construction of the jambs and the exact manner whereby the slots 4: are produced therein form no essential part of our present invention, it is not thought necessary to give a more complete description thereof.

5-5 denote a plurality of sections comprised in the door proper adapted to be disposed edgewise in superimposed relation and of such a length as to project through the slots 4 of the jambs 3, the endwise movement of said sections or panels in one direction being limited by contact with the extremities of the longitudinally disposed cleats 6 secured to the inner face of the side C adjacent one of the jambs 3 and disposed in predetermined vertically spaced relation, the upper surfaces of certain of said cleats 6 having formed therein the longitudinally disposed track-ways 7 over which the sections 5 are adapted to ride when said sections or panels are adjusted into their inoperative position. In order'to engage its proper track-way it will be readily perceived that each of the sections must be adjusted vertically a distance to clear the same of the forward marginal portion" of its coacting cleat, and for this reason we find it of advantage to have the upperface of each of the cleats inclined inwardly and downwardly on a predetermined bevel or angle. The cleats 7 are of such a length as to permit one extremity of a section or panel 5 to project slightly within the door opening D when said section is in operative position, and in order to limit the movement of the sections orpanels inwardly over its track-way, we secure to the inner surface of the side wall the vertical beam 8 positioned at the inner extremities of the cleats, as is believed to be clearly shown in the accompanying drawings. We also find it of advantage to tie or connect the cleats 7 at a point intermediate their lengths by the stra 9 disposed transversely thereof and whic further serves to maintain the panels or sections upon their respective track-we s when in their inoperative position. e also v,oridge the space between the cleats 6 by the longitudinally disposed panels 10, the outer faces of which being substantially flush with the outer face of the adjacent jamb 3.

Each of the sections or panels 5 in its upper longitudinal marginal portion is provided with a slot or opening 11 to afford a suitable hand grasp, while one end marginal portion thereof is provided with a further slot 12 for a similar purpose, the slot 11 permitting the section or panel to be conveniently elevated to engage its proper trackway, while the slot 12 readily permits the panel or section being withdrawn from its inoperative adjustment and properly positioned across the doorway.

The lower marginal portion of each of the upper panels or sections are provided with the longitudinal grooves adapted to receive the upper longitudinal portion of the sec:

tion or panel immediately thereben'eath whereby an effective closure for the doorway D is assured when the sections are in applied position. The inner extremities of each of the panels or sections 5 are also provided with the openings 1-l adapted to register with suitable openings produced transversely of the inner jamb 3 and through said alined openings are inserted the keys 16 with which coact the endwise movable latch members 17 adapted to maintain said kcys'against displacement from their respective positions. The keys are also adapted to be used for maintaining the panels or sec tions 5 from outward movement upon their track-ways 7 and thereby maintaining said sections or panels in their inoperative positions. The upper section 5 is provided in its opposite or outer extremity with the opening ll adapted to register with the opening 15 disposed through the sccond'jamb 4: and when said openings 14 and 15 are in register, the pin 16" is adapted to be disposed thcrethrough in order to maintain the sections 5 against any upward. movement, in a manner and for a purpose which is believed to be clearly apparent to those skilled in the art to which my invention appertains.

The longitudinal grooves, hereinbet'ore referred to, as provided along the lower marginal portions of certain of the panels or sections, are provided by oll'setting said lower marginal portions, as indicated at 18, each of said oll'set portions having coacting therewith the elongated plates 19 secured to the outer faces of the panels or sections, as is believed to be clearly shown in Fig. 2 of the accompanying drawings, y

.We also find it of advantage to provide each of the sections 10 adjacent their inner upper corners with the 131118 2-0 projecting beyond the opposite faces thereof and serving to prevent removal of said sections from operative arrangement and in order to i'acilitate the arrangement of said sections in iaaaari v their relative closed positions, we provide the opposed faces of the slot L in the jamh 3 adjacent the track-way 7 with the elongated longitudinally disposed marginal channel or groove 2i adapted to receive the projected extremities of the pins 20 and to permit said sections to be readily adjusted vertically ot' the jambs 3 when in their with: drawn position i that the intermediate vertical beam 8, to which the strap 9 is secured, is provided with the transversely arranged grooves or channels 22 whereby it will be readily perceived that no obstruction will be offered. to the endwise movement of the sections 10 upon the track-ways 7.

Ne have'also found it in practice of particular advantage'to provide means'whereby the gain may be elevated from within the cars without the necessity of removing the door sections 5 and, as herein en'ibodicd, we provide for this arrangement by producing in the bottom section 5 the opening of predetermined configuration and surrounded by the guide plate 23 secured to i:

the.outer surface of the section and with which coacts the valve A supported for rocking movement around the pivot 25, and in order to facilitate the requisite inanipnlation of the valve 2%, we have pivotally engaged therewith the operating member is adapted to overlie the lug 2? when the valve is in closed adjustment and in order to in.

tain said valve in its closed position, a suitable lock 28 is operatively engaged with the lug 2.7 and the operating member 26. Y Y it is desired to adjust the valve ll into an open position, it is thought to be scl'li-evi dent that the member :26 may be readily M justed relatively' to the valve it so as to 1. cilitale the operation.

From the foregoing description, it thought to be obvious that a graiirdoor con structcd'in accordance wit-l mo: invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembler and it will also be obvious that our inv tion is susceptible of some change and men iication without material departure tr m. the principles and spirit thereof and for l reason we do not wish to be understood limiting ourselves to the precise arran went and formation of the, several pa herein shorts in carrying out our invent in practice.

NV e claim:

1. The combination with a wall provi with a door opening and door gui ranged at opposite sides of said openir a door consisting of a plurality of sections ada rted for engagement in the guides h superposed relation when the door is close transversely inclined tracks arranged It is also to be observed Q ii the wall at one side of the door opening, said door sections being adapted to be respectively elevated and moved in the guides upon the respective tracks to their open positions, and a vertical bearing bar connecting the several tracks and serving as an additional guide for the door sections, the lower edges of the door sections sliding upon the transverse tracks into bearing contact with said vertical bar.

2. The combination with a wall provided with a door opening having vertical slotted jambs at opposite sides thereof, of a door consisting of a plurality of sections vertically and longitudinally movable in said slots, one of the door jambs being provided with a vertical channel extending along one edge of the slot therein, a pin fixed in each door section to guide the door section in its vertical movement and to limit the movement of the door sections to their closed positions, and a series of tracks'mounted upon the car wall upon which the respective door sections are adapted to be engaged and laterally moved to their open positions.

3. The combination with. a wall provided with a door opening and vertical slotted jambs at opposite sides of said opening, of

copies of this patent may be obtained (or a door consisting of a plurality of sections arranged in superposed relation when in their closed positions, a series of cleats secured to the wall, a vertical bar secured to said wall and intersecting the cleats, a transversely inclined trackway on each of said cleats, a vertical guide bar extending in spaced parallel relation to said first named vertical bar and across the trackways, a

series of panels fixed to the guide bar and covering the trackways, said door sections being adapted to be elevated and engaged ELMER BROWN. LOE E. LARSON.

Witnesses:

B. C. MARKS, R. M. WATSON.

five cents each, by addressing the "Commissioner 02 fiatente.

Washington, D. 0.? i

upon the respective trackways and moved 

